Procom DVS-21 - 7.17 4 LSL

User Guide
DVS-21
02/2018 • V.1.0 • L. Wolle
64/131
© 2017 ProCom
®
Professional Communication & Service GmbH • Technical changes reserved.
Backplane connectors:
M a/b
- Output for 4LSL measuring frequency
Important! Close both bridges on Set 4 of the backplane!
7.17 4LSL
Measurement module for loudspeaker line (LL) monitoring (impedance, short circuit, line break),
loudspeaker line toggling and voice acknowledgment when public address is made
up to Module Firmware 2106
AD Converter (U)
Voltage threshold at AD Converter of the voltage path
AD Converter (I)
Voltage threshold at AD Converter of the current path
Tolerance
permissible deviation from the measured reference values
as from Module Firmware 2110
Disable in case of short circuit
Loudspeaker relay is disabled if the impedance measurement detects a
short circuit
AD Converter (U)
Voltage threshold at AD Converter of the voltage path
AD Converter (I)
Voltage threshold at AD Converter of the current path
Tolerance
permissible deviation from the measured reference values
Check measuring (twofold)
Verification by a 2nd measurement before a warning is issued
as from Module Firmware 4102
DVS Firmware
as from 7.60
ICS Version
as from 7.00 Rev. 036
Disable in case of short circuit
Loudspeaker relay is disabled if the impedance measurement detects
a short circuit
AD Converter (U)
Voltage threshold at AD Converter of the voltage path
AD Converter (I)
Voltage threshold at AD Converter of the current path
Short circuit, emergency switch-off!
Emergency switch-off if a short circuit is detected during a public
address
Enable after shortcut removal
Public address is only possible if an impedance measurement is
made without a short circuit